2a+3=3(a+7)

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Solution for 2a+3=3(a+7) equation: 



2a+3=3(a+7)

We move all terms to the left:

2a+3-(3(a+7))=0



We calculate terms in parentheses: -(3(a+7)), so:

3(a+7)

We multiply parentheses

3a+21

Back to the equation:

-(3a+21)



We get rid of parentheses

2a-3a-21+3=0

We add all the numbers together, and all the variables

-1a-18=0

We move all terms containing a to the left, all other terms to the right

-a=18

a=18/-1

a=-18

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